iOS : Add Picker Ui element dynamically

i don't see any methods for adding the picker to the view

A UIPickerView is a subclass of UIView, so you use the same methods that you'd use to add any subview to a view, namely -addSubview:, like this:

UIPickerView *picker = [[UIPickerView alloc] initWithFrame:theFrame];
picker.delegate = self;
picker.dataSource = self;
[self.view addSubview:picker];

I'm assuming here that the code is in a view controller that's acting as both the delegate and data source for the picker.

First alloc memory to your picker view.

UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 265, 320, 216)];

and then set delegate and datasource.

pickerView.dataSource=self;
pickerView.delegate=self;

after that add picker view to your main view.

[self.view addSubview:pickerView];

after that you should implement pickerview's method .

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return 1;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{    
     return [array count];
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
        return [array objectAtIndex:row];
}

i hope this will work fine.

You adding the picker to the view just like and UIView you want to add -> addSubview method.

UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0,200,320,200,)]];
pickerView.delegate = self;
[self.view addSubview:pickerView];

Don't forget to set it's delegate and implement it in order to achieve it's functionality.

As with other you need to alloc+initWithFrame.

UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 100, 0, 0)];

Then add it to your target view.

[yourView addSubview:pickerView];

Also you need to set it delegate and datasource, which will show all your elements in the picker view.

pickerView.dataSource=self;
pickerView.delegate=self;

And all other customization as :

pickerView.showsSelectionIndicator=YES;

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
  return [array objectAtIndex:row];
}